Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/OISF/suricata/security/advisories/GHSA-x8c9-8553-j9px
Patch x_refsource_misc
https://github.com/OISF/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0
Permissions Required x_refsource_misc
https://redmine.openinfosecfoundation.org/issues/7613
Scores
CVSS v3
6.2
EPSS
0.0006
EPSS Percentile
18.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (1)
oisf/suricata
< 7.0.9
Published
Apr 10, 2025
Tracked Since
Feb 18, 2026